Stair-marking tool.



PATENTED JAN. 30, 1906.

M. LEBLANC. STAIR MARKING TOOL. APPLIpA'rIoN 21pm JUNE 5. 1905.

2 SHEETS-SHEET 1.

Mandi/e e//zc,

Inventor, s l

ma, By M Attorneys Witnesses:

PATBNTED JAN. 30, 1906.

` M. LEBLANC.

STAIR MARKING TOOL.

APPLICATION FILED JUNE 5, 1905.

2 SHEETS-SHEET 2.

Maxime ge/aaa, Wltnesses: Inventor,

- Attorneys z A widths.

` advantages of the invention.

A 1s a detached view of the slidable plate here- -in the city and district of Montreal, in the marking-plate adapted to serve as a guide 1n from in the form, proportion, and minor desimilar characters of reference indicate correin the direction of the arrow. Fig. 3 is a secwedges properly placed and at the u per por- UNITED sTATEs MAXIME LEBLANC, OF

MONTREAL, CANADA.-

srAlR-MARKING TooL.

Specification of Letters Patent.

Patented J anfSO, 1906.

Application filed June 5, 1905. Serial No. 263,691.

T0 all 'wl/1,0111, it may concern,.-

Be it known that I, MAXIME LEBLANC, a subject of the King of Great Britain, residing Province of Quebec, Canada, have invented certain new and useful Improvements in Stair-Marking Tools; and I do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This inventionrelatesto new and useful improvements in combination-tools adapted' especially for use in marking the runners of stairs to furnish guides from which channels are cut in said runners for the treads and risers comprising the steps.

The object of the invention is to provide a simple, compact, and easily-adjusted tool which is especially adapted for use in marking stairs, which may be so adjusted that the angle with relation to the Atread and the riser may be varied, and includes a reversible marking the channel for the tread of varying The invention consists in the combination and arrangement of arts which are shown in the accompanying rawings, all as hereinafter more fullyv described, and particularly pointed out in the claims, it being understood that said drawings illustrate the preferred construction, which may be departed tails of arts therein shown within the sco e of the c aims withoutsacriicing any of t e In the accompanying drawings, in which s onding parts in all the views, Figure 1 is a p an view of the com lete tool ready for use. Fig. 2 is a section on ine 2 2 of Fig. 1 looking tion on line 3 3 of Fig. 1 lookin in the same direction. Fig. 4 is a detache view of the ivoted plate hereinafter referred to. Fig. 5

inafter referred to. Fig. 6 shows a stair-runner or end piece which is providedwith channels for the tread and riser in a portion thereof, showing in the same view a section of a tread and riser in position with lockingtion of said view the manner of app yin the tool for the purpose of marking t e out ines of thc channel for said tread and riser. Fig.

7 is a detached view of the jointed markingtool detached from the marking-plates, showing how it may be used as a divider. Fig. 8 shows the jointed marking-tool locked in position for use as a square. Fig. 9 is a detached detail view of the filler-block, hereinafter referred to, which is used to complete the rectangle atthe corner of the square shown in Fig. 8. Fig. 10 is a section on line 1o 1o of Fig. 1.

Referring to the parts, 1 is a marking-tool comprising the pivotally-connectcd arms 2 and 3, the arm 2 having secured to it a serrated or notched segment 4, which is pro- -vided with an indicating-scale 5 and with a plurality of notches or recesses 6, with which notches the finger 7 of the rockable springactuated locking-dog 8 is adapted to engage, a sprin 9 bearing against the under side of said locdng-dog for the purpose of throwing said finger 7 inwardly to engage with the notches referred to.

Pivotally connected with the arm 2 is the filler-block 10, which filler-block has extending laterally therefrom the stop 11,' which stop is adapted to rest against the upper end of the arm 3, as shown in Fig. 8, or rest in the -recess 12 (shown 1n said Fig. 8) when the tool is not to be used as a square-as, for example,

as shown in Fig. 7.

Cooperating with the locking-dog 8 is a setscrew 13, which is held in the screw-threaded block 14, which block is mounted on the setscrew 13 and bears at its inner end against the segment 4, so that said segment may be locked in any position intermediate the notches 6 by means of said screw when desired.

The arms 2 and 3 are provided with longitudinal slots 16 and 17, respectively, and pivotally connected with the arm 3 by means of the laterall -projecting pin 18 is a markingplate 19, which is shown detached in Fig. 4. Said plate 19 is provided at opposite ends with said pins 18 and perforations 20, which perforations are arranged approximately centrally of the arc formed by the ends of said member 19. This plate 19 is slotted longitudinally at 21, as shown. -The arm 3, in addition to the slot 17, is provided with a shorter longitudinally-extending slot 22, into which projects the pin 23, carried by the slidablc plate 24, which plate 24 is also longitudinally slotted, as shown at 25. It will be observed that the plate 24, like the plate 19, is wider at one end than at its opposite end, and when IOO IIO

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the plates 19 and 24 are placed in position, as shown in Fig. 1, the adjacent edges thereof -extend slightly beyond the inner edges 25 and 26 of the arms 2 and 3.

Extending from the arm 2 to the arm 3 is a diagonal telescopically-arranged connecting-v member comprising the flanged and longitudinally-slotted plate 28 and the extension 29, both said plate 28 and extension 29 being longitudinally slotted, as shown at 30 and 31, respectively. Connectin the plates 28 and 2 9 and slidable in the s ots thereof is a screw 32, which is provided for well-understood purposes. Connecting the plate 28 with the arms 2 is a set-screw 34, a similar screw 35 being provided to connect said plate 28 with the plate 19, and said set-screws 34 and 35v are projected, respectively, through the slotsv 16 and 21 and a slot 36, formed in the end portion of said plate 28. Projecting through the slots 17, 25, and 31 is a set-screw 37 ,which serves to connect the extension 29 and the arm 3 with the slidable plate 24, so that when it is desired to change the angle of relation between the arms 2 3 and their corresponding plates 19 and 24 the set-screws referred to will travel in the longitudinal slots referred to, and when the tool has been adjusted lto the desired angle s fgidnsmiws may be tightenedjo lock it in position. As the set-screw 34 trav "'a`difl"erent arc from that of the set-screw 35, the plate 19 is preferably cut away at 39, as shown in Fig. 5, and to utilize this cut-out portion scrolls '40 are formed, which may be used to mark the outline of moldings whichvare used for ornamentation in buildings. The plate 28 is provided, as described, with a laterally-projectlng flange 41,(best shown in Fig. 10,) which flange is adapted to serve as a guide in using the tool.

VlVhendtle tool is in use as a stlir-marking too sa1 an e 41 rests a ainsi; eed 6.42 of the runnegidh'/uter edges 0I the arms 2 and 3, together with the inner or adjacent edges of the plates 19 and 24, serve as guides for the pencil to be used in marking the tread-channel 44 and riser-channel 45, which channels are preferably made wider at one end for the insertion of the wedges 46, which wedges are adapted, respectively, to force the tread 47 upwardly a ainst the upper face of the channel 44 an to force the riser 48 outwardly against the outer edge of the channel 45. To assist in forming the channel 44, the perforations 20 are provided 1n the end portions of said plate 19, and as said perforations 2O are relatively centrally ofthe arc formed by the ends of said plate 19 1 t 1s evident that the pencil-point may be projected through said perforations 20 to mark the center to be used as a guide in boring the runner 43 to provide the curved outer end portion 50 of the tread-channel 44. If it is than would be formed when the tool is in the position shown in Fig. 1, the plate 19 may be reversed and the p1n at the opposite end thereof may be projected through the perforation in the arm 3 to place said plate in pos'ition to form a tread-channel of less width, in which case the lower edge of said plate 19 as shown in Fig. 1, will rest nearer to the edge 25 of the arm 2, and when the tool is used 1n this position a tread -channel of less width may be marked.

To ada t the tool for use as a square, said filler-bloc 10 is provided, which is preferably rectangular at two of its edges, as best shown in Fig. 8, so that said filler-block will serve as a means for completing the square formed by the outer edges of the arms 2 and 3 when said filler-block is thrown to a position so that the stop 11 thereof will rest against the upper edge of the arm 3.

The tool is adapted for purposes other than described, and it is evident that the arms 2 within the compass of the segment 4, and having the pointed ends 51 formed on said members 2 and 3 it is evident that the tool when the plates 19 and 24 are detached may be used as a pair of dividers, as shown in Fig. 7, the oints 51 serving as marking-points, if desired).

When the plate 19 is placed in a reversed position to that shown in Fig. 1, it is evident that owing to the osition of the pin 18 in the narrow end of sai plate the inner edge thereof will rest at a distance from the upper edge 24a of the plate 24, in which case said plate 24 may be slid longitudinally of the arm 3, the pin 23 riding in the slot 22 until said edge 24 contacts with the lower edge of the plate 19, after which said plate 24 may be locked in position.

Having described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a stair-marking tool, a pair of pivotally-connected members, means for locking them in dierent angular relations to each other, longitudinally-slotted plates connected with each of said members, and an obli uely-extending arm connecting said pivoteff members and said plates.

2. In a stair-marking tool, a pair of longitudinally-slotted pivotally-connected members, means for locking them in different an'- gular relations to each other, longitudinallyslotted plates connected with each of said members,locking means therefor, and an ob'- li uely-extending arm connecting said pivotedl members and said plates.

3. In a stair-marking tool, a pair of pivotally-connected members, means for locking them in different angular relations to each other, longitudinally-slotted plates connected with each of said members, one of which is desired to form the channel 44 of less width slidable longitudinally, and an obliquely-exand 3 may be adjusted to occupy any angle IOO tending arm connecting said pivoted members and said plates.

4. In a stair-marking tool, a pair of pivotally-connected members, means for locking them in different angular relations to each other, longitudinally-slotted plates connected with each of said members, an obliquelyextending longitudinally-slotted telescoping arm connecting said pivoted members and said plates, and locking means slidable in the slots in said. arm. 5. In a stair-marking tool, a pair of pivotally-connected members, means for locking them in different angular relations to each other, longitudinally-slotted plates connected with each of said members, one of said plates being wider at one end than at its opposite end, the other of said plates being slidable longitudinally, slotted, slidable connecting members, and locking means adapted to ravel in the slots of said connecting memers.

6. In a tool of the character describedLa jointed marking member comprising a pair of pivotally-connected and longitudinally-slotted arms, plates wider than said arms connected therewith, one of said plates having a perforated extension projecting beyond the joint, and means adapted to secure said marking member and said plates in a plurality of positions.

7. In a tool of the character described, a jointed marking member comprising a pair of pivotally-connected and longitudinally-slotted arms, plates wider than said arms connected therewith, one of said plates having a perforated extension projecting beyond the `ioint, said plate being reversible and being Wider at one end than at its opposite end, and means adapted to secure said marking member and said plates in a plurality of positions.

8. In a stair-marking tool, a pair of pivotally-connected members, a pivot therefor, means for locking said pivoted members at different angles to each other, a longitudinally-slotted plate pivotally mounted on one of said pivoted members, and means for locking said plate in position.

9. In a stair-marking tool, a pair of pivotally-oonnected members, a pivot therefor, means for locking said pivoted members at different angles to each other, a longitudinally-slotted and perforated plate pivotally mounted on one of said pivoted members, and means for locking said plate in position, the perforated portion of said plate extending beyond the said pivot.

10. In a stair-marking tool, a pair of pivotally-connected members, a pivot therefor, a pair of plates connected with and extending substantiall parallel with said pivoted members, one o said plates being wider at one end than at its opposite end and extending beyond said pivot, and means for locking said movable parts in a plurality of positlons.

1 1. In a stair-marking tool, a pair of pivotally-connected members, one of said members having a longitudinally-extending slot therein, the other of said members having a plurality of slots, an approximately parallel plate pivotally connected with one of said members, there being a longitudinal slot in said plate extending parallel with the other of said pivoted members, a pin projecting from said last-mentioned plate into a slot in its companion pivoted member, and means for locking said parts in a plurality of positions.

12. In a stair-marking tool, a pair of pivotally-connected members, a pivot therefor, a segment connected with one member, locking means on the other member-adapted to engage said segment, and a rectangular fillerblock pivotally mounted in proximity to said pivot.

13. In a stair-marking tool, a pair of pivotally-connected members, a pivot therefor, a segment connected with one member, locking means on the other member adapted to engage said segment, and a rectangular fillerblock pivotally mounted in proximity to said pivot, there being a laterally-extending stop on said filler-block.

14. In a stair-marking tool, a pair of pivotally-connected and longitudinally-slotted members, a pivot therefor, a longitudinallyslotted and perforated plate mounted upon one of said pivoted members, said plate extending beyond said pivot, a longitudinallyslotted plate mounted upon the other pivoted member, and locking means adapted to hold said pivoted members and said plates in different angular relations.

15. In a stair-marking tool, a pair of pivotally connected and longitudinally slotted members, a pivot therefor, a longitudinallyslotted and perforated plate mounted upon one of said pivoted members, said plate extending beyond said pivot, a longitudinallyslotted plate mounted upon the other pivoted member, locking means adapted to hold said pivoted members and said plates in different angular relations, and a laterally-extending pin projecting from said last-mentioned plate into a slot in its companion pivoted member.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

MAY IME LEBLANC.

Witnesses:

FREDERICK H. GIBBs. A. D. LEBLANC.

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